Home / 787,746.80-1,182,203.40-314,771.60

Finding the Fourth Proportional to 787,746.80, 1,182,203.40 and 314,771.60

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Solution

The fourth proportional to 787,746.80, 1,182,203.40 and 314,771.60 is: 472,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,746.80 : 1,182,203.40 = 314,771.60 : x
  2. Step 2: Convert to fraction form
    787,746.80/1,182,203.40 = 314,771.60/x
  3. Step 3: Cross multiply
    787,746.80x = 1,182,203.40 × 314,771.60
  4. Step 4: Simplify right side
    787,746.80x = 372,124,055,743.44
  5. Step 5: Solve for x
    x = 372,124,055,743.44/787,746.80
  6. Step 6: Final answer
    x = 472,390.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.